| List-I | List-II |
| A. Metacentric chromosome | I. Chromosome has a terminal centromere |
| B. Sub-metacentric chromosome | II. Middle centromere forming two equal arms of chromosome |
| C. Acrocentric chromosome | III. Centromere is slightly away from the middle of chromosome resulting into two unequal arms |
| D. Telocentric chromosome | IV. Centromere is situated close to its end forming one extremely short and one very long arm |
The correct matches are:
A. Metacentric chromosome - II. Middle centromere forming two equal arms of chromosome.
B. Sub-metacentric chromosome - III. Centromere is slightly away from the middle of chromosome resulting into two unequal arms.
C. Acrocentric chromosome - IV. Centromere is situated close to its end forming one extremely short and one very long arm.
D. Telocentric chromosome - I. Chromosome has a terminal .
Therefore, the correct option is (4): A-II, B-III, C-IV, D-I.

A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :
The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
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In the above represented plasmid an alien piece of DNA is inserted at the EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies?